Bosch Electronic Highflow (page 3 of 4)

We moved into a house with a Bosch 26e Highflow system earlier this year and noticed that during a shower, the hot water cuts in and out constantly. We have two bathrooms and it was happening in both showers. I was extremely worried as having a reliable and efficient shower is very important to my daily well-being. During the winter, it didn't happen to me as I have super hot showers when it's cold but as the weather has warmed up again and I'm using less hot water, it's started happening again. I've tried all manner of configuring the taps - h...

I was recommended to change to a shower head with flow greater than 9l/m to maintain heat in a shower. I can't find one. Everything seems to be a max of 9l/m (wels3).Does this mean that bosch highflow 17e shouldn't be on the market?

Everything! Looks good, performs well, and has saved me a fortune on electricity. If I could sleep with it I would but my wife gets so jealous that I am afraid to take the chance. My best friend is renting and he has been trying to persuade his landlord to put one in but so far, he is behaving like so many other landlords do. It might have been a mistake to tell him about my wonderful heater as the relationship with his landlord is deteriorating fast, which is sad, because he fancies the landlords wife.
Price, Performance, Economy.

21e - hopeless having this unit if you rely on electricity as well - when you have a power blackout you don't get hot water - even though it is a gas unit. Bought this house 18 months ago, unit is not too old and the i am going to replace this with an instantaneous gas unit.

No hot water in power blackout.

I had a 16H 7 years ago and I was never happy with the hot water. Same issues ive been reading here from other people. After a minute in the shower it goes cold. I am constantly having to fiddle with the cold water. I now havent had a hot shower in 4 days and am angry. 10 months ago it completely died and no hot water would work so I had to pay $1300 to have a new one installed. Well what do u know same bloody stuff! I am completely over Bosch products now. Its a bad situation to be in because if I call a plumber I get the usual "well if I dont...

Excellent Heater, consistent hot water supply, looks compact and sharp. However, this unit will not work in a blackout as opposed to hydros. The unit is also compatible with temperature control panel, however I did not install that. When other people use hot water at the same time, there is fluctuation and drop in pressure however.

We have just installed a new Bosch 26e hot water unit and we are not happy with it's performance. The shower running cold after a few minutes is a big problem. I do not have a water saver shower rose and the unit cuts out after 2-3 minutes. You turn on the hot tap...wait a few minutes and the water comes out hot. After a few minutes of running or if you adjust the cold of hot slightly the unit cut out and goes into "cool down" mode. In the meantime you stand in a cold shower and wait for it to come back on again. I hear a lot about shower he...

Just moved in a new house for two weeks,with Bosch high flow 17e hot water system, one cylinder of my LPG-45 KGs has gone empty, call el gas, they told me about 3 months for one cylinder gas. I also smell the stink in my room, feel dizzy which I thought it caused by recent bush fire.....Switch off the cylinder and call the builder....

Leaks

We installed at 26E on our home approximately 4 years ago after doing a fair amount of research on environmentally friendly systems. The first 6 months were great, reduced electricity bills, continuous hot water. But since then we have had nothing but trouble. We have had the plumber back to take it off the wall no less than 25 times. There have been continual parts arriving from Bosch to replace the possible faulty parts. The system has never worked properly again. I am so disappointed that Bosch refuse to acknowledge that we have a faulty sys...

I installed a Bosch 26e in 2008 and never had a problem with mine. The optional temperature controllers are located in the kitchen and bathroom out of reach of children. The only thing I have a problem with is when someone turns a tap on or flush the loo the temperature drops slightly. I think this is more to do with the mains water supply and not the heater. Like most things these days it depends where and when it was manufactured. People need to realise the unit heats the water from where it is located and the cold water is flushed from the...

I live in east gippsland, had an E16 installed Jan 2008 and have never had a problem. I could only give it excellent marks. I think the poor reviews online could be just the need to change setttings; I reduced the heat levels and found shower adjustments much easier; as for waiting for the hot water to come through, I put a bucket under the tap or shower and then pour it into my washing machine ready for the next wash. Run out of gas? then ha ve two bottles so you can switch instantly. Think laterally people for goodness sake.
reliable, energy efficient
I've found nothing wrong so far

Over the last few months i was deciding between a Bosch, Dux and Rinnai hot water unit. After reading many reviews and all seeming bad I figured most people only take time to write a bad review and never bother when happy. I decided on the Bosch 26e due to having other Bosch appliances that i am more than happy with. I found the unit works extremely well and i should save allot of money over my old electric hot water storage unit. Hot water takes a little bit longer to reach the tap but that was expected due to the unit only starting when turni...

Hi, we are temporarily renting and there is a Bosch 21e unit installed, not sure how old. The problem we have is that when it rains we have no hot water. Not sure if it is the moisture in the air that causes this. We can hear the spark trying to ignite, there is smell of gas but no hot water. The only thing we're sure of is that when it rains we have cold showers.

As usual german manufacturing not up to a reasonable standard I have worked on german weighing equipment engines cameras ships pumps etc .I think that chineese manufactured eauipment noted for its poor quality rates one star better than german equipment it is hard to believe that any distributor would touch the stuff
Nil
Continiously the gas cuts out during showering

Not happy far from it we brought a new g j gardner home two years ago and this system was already in place we are disappointed with this unit.

Every time we want hot water we have to run the tap flat out for approximately up to a minute before the warm to very mild hot water comes out which is not suitable for washing dishes so we have learnt to live with this and we boil the water when we want to wash the dishes.

I cannot believe we have not complained about this until now.

We had this system installed 8 months ago, have used 4 cylinders of gas since (2 people live in the house) the water temperature is scalding, so you have to turn the tap down to colder, when you do all you get is cold water so you turn the hot on again only to be scalded.

Each time the gas goes off and we change to another cyclinder you cannot get the hot water to start again. Contacted the Rinnai tech support by mistake, they were so helpful, but then we found out it was not their system but if it had they would have helped us to fix the...

Had Bosch 17e (instant??) installed 12/12/11 - would only fire up sometimes, called Bosch Service on 25/1/12 for warranty - Tech/Plumber arrived 2/4/12 (Great service) did not fix. Called Bosch again on 10/7/12 same problem now 15/8/12 still waiting for someone to arrive to fix? - Time to rip it off the wall and install a Rinnai and call a Current Affair - what a joke.

I turn on the hotwater and let it run (waste water) heater does not start. Have to walk to the power point it is connected to and remove the plug from the wall and plug it in ...

Okay so I purchased this unit under the understanding that it would be saving me heaps of gas which would be better for the environment; and in the process I would receive a constant temperature which could be set via the electronic controller.

They lied.

Reality is that (and I have just got off the phone to Bosch Customer Service) the temperature will fluctuate of someone else in the home turns on a tap - either cold or hot. So when I'm having a shower and the temperature changes to the point where I am about to get scolded and dance ar...

Generally been a fan of Bosch products. In the three years of constant use, this unit has run quite smoothly. The only thing is that it’s age is showing on the unit, from the harsh environment, apart from  that, it’s working as expected.

The hot water is hot, but not boiling, and it’s great. There’s basically no chance of scalding myself from the hot water, and regularly just shower with hot water only.

Hot water does take a short amount of time to flow through, but that’s expected and no fault of the system. I do notice that the gas burn...

My Bosch Highflow e21 is dangerous, the unit turns itself on when I haven't even turned a tap, there is gas smell coming from the unit even when its not running, the last cylinder only lasted a month,and we are a two person household only using gas for the hot water. would not recommend this product

Yes save on gas (states is super energy efficient)but they dont tell you that you WASTE so much water waiting for the hot to come. I always cringe when i turn the hot water tap on.
(had gas storage hot water before,that was more instant than the Bosch highflow.

The unit is out side the bathroom and its quite a short distance from the shower
Small compact takes up little space, No Pilot light to waste gas
Waiting for the water to get HOT. If no power NO hot water

Make sure you do not use and water saver device with this unit, will make your shower go hot and cold.
Make sure your pressure into the unit isnt to high if it is will make the heat exchanger split & leak - you can help fix the problem by installing a pressure limiting valve "plv"
Great Unit - Works beautifully when installed correctly
bigger in size compared to rinnai

Moved into rental property with 17e with the remote temp control option. Must have been installed correctly as works brilliantly. Never run out of hot water, can set the temp however we want. Great.
Temp and flow rate control, never runs out of hot water. So far my guess is that it saves on gas, however haven't had the bill or other gas system to compare to.
Occasionally slight temperature change, barely noticeable.

Not impressed.The gas bill has gone from $55 to $150 in a 3month period.You have to be carefull using the tap if you have a flickmixer and you want cold water only, that it is actually in the cold position otherwise you are telling the unit to turn the gas on all the time when its really not needed.This leads to a hefty gas bill firing up the gas for 30 to 40 secs without actually realising you turned the unit on,just to have cold water.
Bosch 26E - Endless hot water I guess.
Takes too long to for hot water to come through.At least 45 seconds if the tap is too far from the unit.

Bought a house with 21E version in and I cannot wait to get rid of the silly thing. Very hard to keep the shower warm, it is either 50C or freezing cold. Am unable to use the water to wash the dishes in as, it is just not hot enough. Hot water is limited to 50C. Would not reccomend to anyone.
System runs quiet
Water goes from hot to cold. No other taps in the house were touched and it still goes cold after a minute. Water only at 50C so useless for washing dishes in. No hot water if power goes out.